Encyclopedia Astronautica
Star 24



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Star-24
Credit: Thiokol
Thiokol solid rocket engine. 20 kN. Skynet 2. In Production. Isp=282s. Apogee boost motor was qualified and flown for the Skynet II, later apogee boost motor for NRL and SAMSO.

Apogee boost motor was qualified and flown for the Skynet II satellite for Ford Aerospace and Communications Corporation and the United Kingdom. It was also flown as the Timation III (STP 73-3) apogee boost motor for NRL and SAMSO. Versions have been used for orbital insertion of the NASA LAGEOS and IUE satellites and the Hughes Aircraft Corporation Pioneer-Venus spacecraft. Charge: 200 kg of AP/hydrocarbon/Al propellant in a spherical 6Al-4V titanium case with a graphite phenolic nozzle. Total impulse 57,132 kgf-s. Propellant mass fraction 0.916.

Application: Skynet 2.

Characteristics

Propellant Formulation: hydrocarbon.

AKA: 29.6-KS-4,170; TE-M-604.
Status: In Production.
Gross mass: 218 kg (480 lb).
Unfuelled mass: 18 kg (39 lb).
Thrust: 20.00 kN (4,496 lbf).
Specific impulse: 283 s.
Burn time: 30 s.

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Associated Countries
See also
Associated Manufacturers and Agencies
  • Thiokol American manufacturer of rocket engines and rockets. Thiokol Corporation, Ogden, UT, USA. More...

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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